Controlling the crystallization of polyesters by means of...

Details Controlling the crystallization of polyesters by means of... Controlling the crystallization of polyesters by means of...

2007-03-20

2007-03-20

Boykin, Terressa (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

C034S580000, C034S586000, C034S589000, C034S590000

Reexamination Certificate

active

10837571

ABSTRACT:
Methods are disclosed herein to reduce and/or eliminate agglomerations and deformations of pellets comprised of crystallizable thermoplastic polymer material during a crystallization or crystallization of the pellets. As described herein, polymer material is subjected to one or more conditioning steps prior to crystallization, in which a controlled moisture content and/or controlled moisture profile is set in the material, or in which the polymer material was obtained via solidification from a polymer melt in such a way that the polymer material has a defined initial moisture profile before the crystallization step

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